. Journal of anatomy . with reference to other growths not usually classed Avith thepersistent canal of His. Mr F. G. Parsons showed specimens of injected tendon sheaths in the forearmand leg. He submitted that when tendon sheaths are injected with melted gelatineby means of a hypodermic syringe, precautions being taken to make the gelatine runproperly by immersing the preparation in hot water, the sheaths become injectedright up to the point at whicli the tendon joins the fleshy part of the muscle. In the specimen of the forearm shown the common flexor sheath extended for3-8 cm. above the lev
. Journal of anatomy . with reference to other growths not usually classed Avith thepersistent canal of His. Mr F. G. Parsons showed specimens of injected tendon sheaths in the forearmand leg. He submitted that when tendon sheaths are injected with melted gelatineby means of a hypodermic syringe, precautions being taken to make the gelatine runproperly by immersing the preparation in hot water, the sheaths become injectedright up to the point at whicli the tendon joins the fleshy part of the muscle. In the specimen of the forearm shown the common flexor sheath extended for3-8 cm. above the level of the pisiform bone, while that of the flexor longuspollicis was injected up to a point 5-8 cm. above the level of the tubercle of thescaphoid. In the case of the flexor carpi radialis the sheath extended for 10-2 cm. (4 inches) Anatomical Notes 397 above the tubercle of the scaplioid. In the specimen of the leg the peroneiis longussheath was injected for 139 cm. (5 inches) above the tip of the external ! Fig. ], Mr F. G. Parsons exhibited a modification of the auricular height craniometer, bymeans of which he is enabled tol^produce the profile or sagittal section outline of askull or living persons head and face. The arch of the craniometer is made large enough to sweep round the head fromthe chin to the occiput, and the scale at A is extensive enough to enable the arm F 398 Anatomical Notes to reach any point in the mid line between. At B a protractor or goniometer isattached to the right ear rod with a rod projecting forward from the point marked90°. On this rod another rod slides at right angles (E) which can be rested ao-ainstthe lower margin of the orbit. When this is done the protractor is clamped by thescrew D, and 90° of its scale always corresponds to a line drawn from the middle ofthe external auditory meatus to the lower border of the orbit. Measurements may now be taken at as many points in the mid line as therecorder thinks desirable, and in
Size: 1234px × 2024px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectanatomy, bookyear1867
